The role of the Beaufort Gyre in Arctic climate variability: Seasonal to decadal climate scales

被引:273
作者
Proshutinsky, A
Bourke, RH
McLaughlin, FA
机构
[1] Woods Hole Oceanog Inst, Dept Phys Oceanog, Woods Hole, MA 02543 USA
[2] USN, Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA
[3] Fisheries & Oceans Canada Inst Ocean Sci, Sidney, BC V8L 4B2, Canada
关键词
D O I
10.1029/2002GL015847
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
[1] This paper presents a new hypothesis along with supporting evidence that the Beaufort Gyre (BG) plays a significant role in regulating the Arctic climate variability. We propose and demonstrate that the BG accumulates a significant amount of fresh water (FW) during one climate regime (anticyclonic) and releases this water to the North Atlantic (NA) during another climate regime (cyclonic). This hypothesis can explain the origin of the salinity anomaly (SA) periodically found in the NA as well as its role in the decadal variability in the Arctic region.
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页数:4
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共 11 条
[1]   THE ROLE OF SEA ICE AND OTHER FRESH-WATER IN THE ARCTIC CIRCULATION [J].
AAGAARD, K ;
CARMACK, EC .
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1989, 94 (C10) :14485-14498
[2]  
Carmack EC, 2000, NATO SCI S PRT 2 ENV, V70, P91
[3]   Multidecadal climate variability in the Greenland Sea and surrounding regions: A coupled model simulation [J].
Delworth, TL ;
Manabe, S ;
Stouffer, RJ .
GEOPHYSICAL RESEARCH LETTERS, 1997, 24 (03) :257-260
[4]  
*EWG ENV WORK GROU, 1998, JOINT US RUSS ATL AR
[5]   On the decrease of Arctic sea ice volume [J].
Hilmer, M ;
Lemke, P .
GEOPHYSICAL RESEARCH LETTERS, 2000, 27 (22) :3751-3754
[6]  
LEWIS EL, 2000, NATO SCI SERIES
[7]   The Canada Basin, 1989-1995: Upstream events and far-field effects of the Barents Sea [J].
McLaughlin, F ;
Carmack, E ;
Macdonald, R ;
Weaver, AJ ;
Smith, J .
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 2002, 107 (C7)
[8]   Decadal climate oscillations in the Arctic: A new feedback loop for atmosphere-ice-ocean interactions [J].
Mysak, LA ;
Venegas, SA .
GEOPHYSICAL RESEARCH LETTERS, 1998, 25 (19) :3607-3610
[9]   Two circulation regimes of the wind driven Arctic Ocean [J].
Proshutinsky, AY ;
Johnson, MA .
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1997, 102 (C6) :12493-12514
[10]   Climate states and variability of Arctic ice and water dynamics during 1946-1997 [J].
Proshutinsky, AY ;
Polyakov, IV ;
Johnson, MA .
POLAR RESEARCH, 1999, 18 (02) :135-142